Top coal arching mechanism and arch removal strategies in fully mechanized top coal caving mining of ultra-thick coal seam
YU Bin
XIA Hong-chun
MENG Xiang-bin
Keywords：top coal cavingmigration lawblock arch in surface contactheight-span ratio
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)